View Cart - Package Separator

Hey Tim, when in the "view cart" window, can you think of any way to separate the package contents from other products in the list?

Right now the box around each package item looks very similar to a regular product, so it's not easy to tell what items are part of a package and what items are freestanding purchases. (I can see some differences, like there are prices on the products and not on the contents - I'm just hoping to make it even more obvious.)

I was thinking of either an indent on the boxes that show package components, or perhaps even just an HR and/or an extra empty line right after the last package item. Any ideas?